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21 Cards in this Set

  • Front
  • Back

The gastrointestinal tract can be thought of as a long tube. Identify the organ that is NOT part of the gastrointestinal tract.




A)mouth


B)anus


C)pancreas


D)duodenum

C)pancreas

The greatest concentration of microorganisms in the gastrointestinal tract are found




A)in the stomach.


B)on the teeth.


C)in the small intestine.


D)in the large intestine.

D)in the large intestine.

Which of the following immunological defenses is common to the oral cavity, the upper GI tract, and the lower GI tract?




A)IgA


B)lysozyme


C)low pH


D)bile

A)IgA

The gut-associated lymphoid tissue (GALT) consists of all the following EXCEPT




A)tonsils & adenoids.


B)Peyer's patches.


C)appendix.


D)gallbladder.

D)gallbladder.

The incidence of dental caries is associated with




A)amount of carbohydrate consumed.


B)hygiene practices.


C)host genetic factors.


D)all of the above.

D)all of the above.

Gingivitis is the initial stage of


A)dental caries.


B)periodontitis.


C)ulcers.


D)gastritis.

B)periodontitis.

The paramyxovirus which causes mumps evades immune response by




A)having blood type O antigen on its surface.


B)forming syncytia and moving cell to cell.


C)infecting lymphocytes.


D)antigen switching.

B)forming syncytia and moving cell to cell.

Swelling of the salivary glands in mumps is called


A)parotitis.


B)periodontitis.


C)salivitis.


D)granuloma.

A)parotitis

Salmonella variants cause all the following EXCEPT


A)salmonellosis.


B)typhoid fever.


C)gastroenteritis.


D)typhus.

D)typhus.

Gastritis and gastric ulcers are caused primarily by




A)Helicobacter infection.


B)Staphylococcus infection.


C)high sugar diet & spicy foods.


D)psychological stress.

A)Helicobacter infection.

Enterohemorrhagic E.coli, or EHEC, can cause all the following EXCEPT




A)hemolytic uremic syndrome.


B)dysentery.


C)gastroenteritis with fever.


D)hepatocarcinoma. (liver cancer)

D)hepatocarcinoma.

Short incubation period, "rice-water" stools, and copious watery diarrhea are the hallmark of infection by this organism, which kills up to half of untreated patients.




A)Clostridium difficile


B)Vibrio cholera


C)Yersinia entercolitica


D)Cryptosporidium

B)Vibrio cholera

___________ does NOT produce an exotoxin as a virulence factor.




A)Salmonella


B)Shigella


C)E. coli O157:H7


D)Campylobacter

A)Salmonella

Identify the hepatitis that can lead to cancer.




A)hepatitis A


B)hepatitis B


C)hepatitis D


D)hepatitis E

B)hepatitis B

The most common flagellated protozoan isolated in clinical specimens is


A)Cyclospora cayetanensis


B)Giardia lamblia


C)Vibrio cholerae


D)Entamoeba histolytica

B)Giardia lamblia

The most common worm disease of children in temperate zones is




A)tapeworm.


B)fluke.


C)pinworm.


D)hookworm.

C)pinworm.

Some antihelminthic therapeutic agents (ATA) work by




A)paralyzing the worm so it can be expelled in the feces.


B)increasing the worm's metabolism.


C)increasing ATP formation in the worm.


D)destroying the eggs.

A)paralyzing the worm so it can be expelled in the feces.

Flukes tend to have a complex life cycle, using ___________ to complete the life cycle.




A)infective cysts


B)intermediate hosts


C)terminal hosts


D)sexual reproduction

B)intermediate hosts

Shistosomiasis has several unique characteristics, including




A)shedding eggs into the bile duct and use of snails as part of the life cycle.




B)being able to see tracks of burrowing worms under the skin and its tiny size.




C)absorbing vitamin B12 and making it unavailable to the host, causing anemia.




D)the ability to burrow into intact skin and coating itself with host blood proteins.

D)the ability to burrow into intact skin and coating itself with host blood proteins.

______ is an inflammatory disease marked by necrosis of liver cells and a mononuclear response that swells and disrupts the liver.




A)Cholera


B)Hepatitis


C)Periodontitis


D)Giardiasis

B)Hepatitis

Identify the worm whose larvae hatch outside the body in soil contaminated with feces, and then infect the host by penetrating the skin.




A)tapeworm


B)hookworm


C)pinworm


D)all of the above

B)hookworm